96% of assessed shallow-water coral reef ecosystems face critical collapse risk by 2075

New Scientist and DW report that an IUCN assessment puts 96% of evaluated shallow-water coral reef ecosystems at critical risk of collapse by 2075. The forecast uses a climate scenario expecting roughly 2.7°C of warming above preindustrial levels by 2100, DW reports. Most reefs have not yet been lost, and New Scientist says other ecosystems lacked enough data to evaluate.